<?php

/**

 * Zend Framework

 *

 * LICENSE

 *

 * This source file is subject to the new BSD license that is bundled

 * with this package in the file LICENSE.txt.

 * It is also available through the world-wide-web at this URL:

 * http://framework.zend.com/license/new-bsd

 * If you did not receive a copy of the license and are unable to

 * obtain it through the world-wide-web, please send an email

 * to license@zend.com so we can send you a copy immediately.

 *

 * @category  Zend

 * @package   Zend_Measure

 * @copyright  Copyright (c) 2005-2010 Zend Technologies USA Inc. (http://www.zend.com)

 * @license   http://framework.zend.com/license/new-bsd     New BSD License

 * @version   $Id: Energy.php 20096 2010-01-06 02:05:09Z bkarwin $

 */

/**

 * Implement needed classes

 */

require_once 'Zend/Measure/Abstract.php';

require_once 'Zend/Locale.php';

/**

 * Class for handling energy conversions

 *

 * @category   Zend

 * @package    Zend_Measure

 * @subpackage Zend_Measure_Energy

 * @copyright  Copyright (c) 2005-2010 Zend Technologies USA Inc. (http://www.zend.com)

 * @license    http://framework.zend.com/license/new-bsd     New BSD License

 */

class Zend_Measure_Energy extends Zend_Measure_Abstract

{

    const STANDARD = 'JOULE';

    const ATTOJOULE                  = 'ATTOJOULE';

    const BOARD_OF_TRADE_UNIT        = 'BOARD_OF_TRADE_UNIT';

    const BTU                        = 'BTU';

    const BTU_THERMOCHEMICAL         = 'BTU_TERMOCHEMICAL';

    const CALORIE                    = 'CALORIE';

    const CALORIE_15C                = 'CALORIE_15C';

    const CALORIE_NUTRITIONAL        = 'CALORIE_NUTRITIONAL';

    const CALORIE_THERMOCHEMICAL     = 'CALORIE_THERMOCHEMICAL';

    const CELSIUS_HEAT_UNIT          = 'CELSIUS_HEAT_UNIT';

    const CENTIJOULE                 = 'CENTIJOULE';

    const CHEVAL_VAPEUR_HEURE        = 'CHEVAL_VAPEUR_HEURE';

    const DECIJOULE                  = 'DECIJOULE';

    const DEKAJOULE                  = 'DEKAJOULE';

    const DEKAWATT_HOUR              = 'DEKAWATT_HOUR';

    const DEKATHERM                  = 'DEKATHERM';

    const ELECTRONVOLT               = 'ELECTRONVOLT';

    const ERG                        = 'ERG';

    const EXAJOULE                   = 'EXAJOULE';

    const EXAWATT_HOUR               = 'EXAWATT_HOUR';

    const FEMTOJOULE                 = 'FEMTOJOULE';

    const FOOT_POUND                 = 'FOOT_POUND';

    const FOOT_POUNDAL               = 'FOOT_POUNDAL';

    const GALLON_UK_AUTOMOTIVE       = 'GALLON_UK_AUTOMOTIVE';

    const GALLON_US_AUTOMOTIVE       = 'GALLON_US_AUTOMOTIVE';

    const GALLON_UK_AVIATION         = 'GALLON_UK_AVIATION';

    const GALLON_US_AVIATION         = 'GALLON_US_AVIATION';

    const GALLON_UK_DIESEL           = 'GALLON_UK_DIESEL';

    const GALLON_US_DIESEL           = 'GALLON_US_DIESEL';

    const GALLON_UK_DISTILATE        = 'GALLON_UK_DISTILATE';

    const GALLON_US_DISTILATE        = 'GALLON_US_DISTILATE';

    const GALLON_UK_KEROSINE_JET     = 'GALLON_UK_KEROSINE_JET';

    const GALLON_US_KEROSINE_JET     = 'GALLON_US_KEROSINE_JET';

    const GALLON_UK_LPG              = 'GALLON_UK_LPG';

    const GALLON_US_LPG              = 'GALLON_US_LPG';

    const GALLON_UK_NAPHTA           = 'GALLON_UK_NAPHTA';

    const GALLON_US_NAPHTA           = 'GALLON_US_NAPHTA';

    const GALLON_UK_KEROSENE         = 'GALLON_UK_KEROSINE';

    const GALLON_US_KEROSENE         = 'GALLON_US_KEROSINE';

    const GALLON_UK_RESIDUAL         = 'GALLON_UK_RESIDUAL';

    const GALLON_US_RESIDUAL         = 'GALLON_US_RESIDUAL';

    const GIGAELECTRONVOLT           = 'GIGAELECTRONVOLT';

    const GIGACALORIE                = 'GIGACALORIE';

    const GIGACALORIE_15C            = 'GIGACALORIE_15C';

    const GIGAJOULE                  = 'GIGAJOULE';

    const GIGAWATT_HOUR              = 'GIGAWATT_HOUR';

    const GRAM_CALORIE               = 'GRAM_CALORIE';

    const HARTREE                    = 'HARTREE';

    const HECTOJOULE                 = 'HECTOJOULE';

    const HECTOWATT_HOUR             = 'HECTOWATT_HOUR';

    const HORSEPOWER_HOUR            = 'HORSEPOWER_HOUR';

    const HUNDRED_CUBIC_FOOT_GAS     = 'HUNDRED_CUBIC_FOOT_GAS';

    const INCH_OUNCE                 = 'INCH_OUNCE';

    const INCH_POUND                 = 'INCH_POUND';

    const JOULE                      = 'JOULE';

    const KILOCALORIE_15C            = 'KILOCALORIE_15C';

    const KILOCALORIE                = 'KILOCALORIE';

    const KILOCALORIE_THERMOCHEMICAL = 'KILOCALORIE_THERMOCHEMICAL';

    const KILOELECTRONVOLT           = 'KILOELECTRONVOLT';

    const KILOGRAM_CALORIE           = 'KILOGRAM_CALORIE';

    const KILOGRAM_FORCE_METER       = 'KILOGRAM_FORCE_METER';

    const KILOJOULE                  = 'KILOJOULE';

    const KILOPOND_METER             = 'KILOPOND_METER';

    const KILOTON                    = 'KILOTON';

    const KILOWATT_HOUR              = 'KILOWATT_HOUR';

    const LITER_ATMOSPHERE           = 'LITER_ATMOSPHERE';

    const MEGAELECTRONVOLT           = 'MEGAELECTRONVOLT';

    const MEGACALORIE                = 'MEGACALORIE';

    const MEGACALORIE_15C            = 'MEGACALORIE_15C';

    const MEGAJOULE                  = 'MEGAJOULE';

    const MEGALERG                   = 'MEGALERG';

    const MEGATON                    = 'MEGATON';

    const MEGAWATTHOUR               = 'MEGAWATTHOUR';

    const METER_KILOGRAM_FORCE       = 'METER_KILOGRAM_FORCE';

    const MICROJOULE                 = 'MICROJOULE';

    const MILLIJOULE                 = 'MILLIJOULE';

    const MYRIAWATT_HOUR             = 'MYRIAWATT_HOUR';

    const NANOJOULE                  = 'NANOJOULE';

    const NEWTON_METER               = 'NEWTON_METER';

    const PETAJOULE                  = 'PETAJOULE';

    const PETAWATTHOUR               = 'PETAWATTHOUR';

    const PFERDESTAERKENSTUNDE       = 'PFERDESTAERKENSTUNDE';

    const PICOJOULE                  = 'PICOJOULE';

    const Q_UNIT                     = 'Q_UNIT';

    const QUAD                       = 'QUAD';

    const TERAELECTRONVOLT           = 'TERAELECTRONVOLT';

    const TERAJOULE                  = 'TERAJOULE';

    const TERAWATTHOUR               = 'TERAWATTHOUR';

    const THERM                      = 'THERM';

    const THERM_US                   = 'THERM_US';

    const THERMIE                    = 'THERMIE';

    const TON                        = 'TON';

    const TONNE_COAL                 = 'TONNE_COAL';

    const TONNE_OIL                  = 'TONNE_OIL';

    const WATTHOUR                   = 'WATTHOUR';

    const WATTSECOND                 = 'WATTSECOND';

    const YOCTOJOULE                 = 'YOCTOJOULE';

    const YOTTAJOULE                 = 'YOTTAJOULE';

    const YOTTAWATTHOUR              = 'YOTTAWATTHOUR';

    const ZEPTOJOULE                 = 'ZEPTOJOULE';

    const ZETTAJOULE                 = 'ZETTAJOULE';

    const ZETTAWATTHOUR              = 'ZETTAWATTHOUR';

    /**

     * Calculations for all energy units

     *

     * @var array

     */

    protected $_units = array(

        'ATTOJOULE'              => array('1.0e-18',           'aJ'),

        'BOARD_OF_TRADE_UNIT'    => array('3600000',           'BOTU'),

        'BTU'                    => array('1055.0559',         'Btu'),

        'BTU_TERMOCHEMICAL'      => array('1054.3503',         'Btu'),

        'CALORIE'                => array('4.1868',            'cal'),

        'CALORIE_15C'            => array('6.1858',            'cal'),

        'CALORIE_NUTRITIONAL'    => array('4186.8',            'cal'),

        'CALORIE_THERMOCHEMICAL' => array('4.184',             'cal'),

        'CELSIUS_HEAT_UNIT'      => array('1899.1005',         'Chu'),

        'CENTIJOULE'             => array('0.01',              'cJ'),

        'CHEVAL_VAPEUR_HEURE'    => array('2647795.5',         'cv heure'),

        'DECIJOULE'              => array('0.1',               'dJ'),

        'DEKAJOULE'              => array('10',                'daJ'),

        'DEKAWATT_HOUR'          => array('36000',             'daWh'),

        'DEKATHERM'              => array('1.055057e+9',       'dathm'),

        'ELECTRONVOLT'           => array('1.6021773e-19',     'eV'),

        'ERG'                    => array('0.0000001',         'erg'),

        'EXAJOULE'               => array('1.0e+18',           'EJ'),

        'EXAWATT_HOUR'           => array('3.6e+21',           'EWh'),

        'FEMTOJOULE'             => array('1.0e-15',           'fJ'),

        'FOOT_POUND'             => array('1.3558179',         'ft lb'),

        'FOOT_POUNDAL'           => array('0.04214011',        'ft poundal'),

        'GALLON_UK_AUTOMOTIVE'   => array('158237172',         'gal car gasoline'),

        'GALLON_US_AUTOMOTIVE'   => array('131760000',         'gal car gasoline'),

        'GALLON_UK_AVIATION'     => array('158237172',         'gal jet gasoline'),

        'GALLON_US_AVIATION'     => array('131760000',         'gal jet gasoline'),

        'GALLON_UK_DIESEL'       => array('175963194',         'gal diesel'),

        'GALLON_US_DIESEL'       => array('146520000',         'gal diesel'),

        'GALLON_UK_DISTILATE'    => array('175963194',         'gal destilate fuel'),

        'GALLON_US_DISTILATE'    => array('146520000',         'gal destilate fuel'),

        'GALLON_UK_KEROSINE_JET' => array('170775090',         'gal jet kerosine'),

        'GALLON_US_KEROSINE_JET' => array('142200000',         'gal jet kerosine'),

        'GALLON_UK_LPG'          => array('121005126.0865275', 'gal lpg'),

        'GALLON_US_LPG'          => array('100757838.45',      'gal lpg'),

        'GALLON_UK_NAPHTA'       => array('160831224',         'gal jet fuel'),

        'GALLON_US_NAPHTA'       => array('133920000',         'gal jet fuel'),

        'GALLON_UK_KEROSINE'     => array('170775090',         'gal kerosine'),

        'GALLON_US_KEROSINE'     => array('142200000',         'gal kerosine'),

        'GALLON_UK_RESIDUAL'     => array('189798138',         'gal residual fuel'),

        'GALLON_US_RESIDUAL'     => array('158040000',         'gal residual fuel'),

        'GIGAELECTRONVOLT'       => array('1.6021773e-10',     'GeV'),

        'GIGACALORIE'            => array('4186800000',        'Gcal'),

        'GIGACALORIE_15C'        => array('4185800000',        'Gcal'),

        'GIGAJOULE'              => array('1.0e+9',            'GJ'),

        'GIGAWATT_HOUR'          => array('3.6e+12',           'GWh'),

        'GRAM_CALORIE'           => array('4.1858',            'g cal'),

        'HARTREE'                => array('4.3597482e-18',     'Eh'),

        'HECTOJOULE'             => array('100',               'hJ'),

        'HECTOWATT_HOUR'         => array('360000',            'hWh'),

        'HORSEPOWER_HOUR'        => array('2684519.5',         'hph'),

        'HUNDRED_CUBIC_FOOT_GAS' => array('108720000',         'hundred ft� gas'),

        'INCH_OUNCE'             => array('0.0070615518',      'in oc'),

        'INCH_POUND'             => array('0.112984825',       'in lb'),

        'JOULE'                  => array('1',                 'J'),

        'KILOCALORIE_15C'        => array('4185.8',            'kcal'),

        'KILOCALORIE'            => array('4186','8',          'kcal'),

        'KILOCALORIE_THERMOCHEMICAL' => array('4184',          'kcal'),

        'KILOELECTRONVOLT'       => array('1.6021773e-16',     'keV'),

        'KILOGRAM_CALORIE'       => array('4185.8',            'kg cal'),

        'KILOGRAM_FORCE_METER'   => array('9.80665',           'kgf m'),

        'KILOJOULE'              => array('1000',              'kJ'),

        'KILOPOND_METER'         => array('9.80665',           'kp m'),

        'KILOTON'                => array('4.184e+12',         'kt'),

        'KILOWATT_HOUR'          => array('3600000',           'kWh'),

        'LITER_ATMOSPHERE'       => array('101.325',           'l atm'),

        'MEGAELECTRONVOLT'       => array('1.6021773e-13',     'MeV'),

        'MEGACALORIE'            => array('4186800',           'Mcal'),

        'MEGACALORIE_15C'        => array('4185800',           'Mcal'),

        'MEGAJOULE'              => array('1000000',           'MJ'),

        'MEGALERG'               => array('0.1',               'megalerg'),

        'MEGATON'                => array('4.184e+15',         'Mt'),

        'MEGAWATTHOUR'           => array('3.6e+9',            'MWh'),

        'METER_KILOGRAM_FORCE'   => array('9.80665',           'm kgf'),

        'MICROJOULE'             => array('0.000001',          '�J'),

        'MILLIJOULE'             => array('0.001',             'mJ'),

        'MYRIAWATT_HOUR'         => array('3.6e+7',            'myWh'),

        'NANOJOULE'              => array('1.0e-9',            'nJ'),

        'NEWTON_METER'           => array('1',                 'Nm'),

        'PETAJOULE'              => array('1.0e+15',           'PJ'),

        'PETAWATTHOUR'           => array('3.6e+18',           'PWh'),

        'PFERDESTAERKENSTUNDE'   => array('2647795.5',         'ps h'),

        'PICOJOULE'              => array('1.0e-12',           'pJ'),

        'Q_UNIT'                 => array('1.0550559e+21',     'Q unit'),

        'QUAD'                   => array('1.0550559e+18',     'quad'),

        'TERAELECTRONVOLT'       => array('1.6021773e-7',      'TeV'),

        'TERAJOULE'              => array('1.0e+12',           'TJ'),

        'TERAWATTHOUR'           => array('3.6e+15',           'TWh'),

        'THERM'                  => array('1.0550559e+8',      'thm'),

        'THERM_US'               => array('1.054804e+8',       'thm'),

        'THERMIE'                => array('4185800',           'th'),

        'TON'                    => array('4.184e+9',          'T explosive'),

        'TONNE_COAL'             => array('2.93076e+10',       'T coal'),

        'TONNE_OIL'              => array('4.1868e+10',        'T oil'),

        'WATTHOUR'               => array('3600',              'Wh'),

        'WATTSECOND'             => array('1',                 'Ws'),

        'YOCTOJOULE'             => array('1.0e-24',           'yJ'),

        'YOTTAJOULE'             => array('1.0e+24',           'YJ'),

        'YOTTAWATTHOUR'          => array('3.6e+27',           'YWh'),

        'ZEPTOJOULE'             => array('1.0e-21',           'zJ'),

        'ZETTAJOULE'             => array('1.0e+21',           'ZJ'),

        'ZETTAWATTHOUR'          => array('3.6e+24',           'ZWh'),

        'STANDARD'               => 'JOULE'

    );

}