Glossary

Glossary

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A
Alternative Fuels

These fuels are environmental friendly and can replace the use of fossil fuels used today (mainly petrol, Mazut, and diesel fuel). Natural gas is an example of an alternative fuel.

B
Bar

unit of measure for pressure. 1 bar = 0.987 atmosphere = 100,000 pascals.

British Thermal Units (BTU)

This is the standard unit to measure an amount of thermal energy. One BTU is equivalent to the amount of thermal energy needed to heat the temperature of one pound water by one degree Fahrenheit and is defined as equal to 1,055.05585262 joule.

C
Carbon Dioxide

A greenhouse gas that is emitted from the combustion of fossil fuels. Its chemical formula is CO2 

Cogeneration

Cogeneration is a technology that combines two processes – electricity generation and heat production. In this method, there is more efficient utilization of the fuel (whereas electricity generation via diesel generator/ turbine has low efficiency and loses heat through gas emissions and the cooling of engines). The cogeneration utilizes the two heat resources and recycles them for thermal processes. A plant that implements the natural gas cogeneration process is able to save electricity and use energy in a more efficient way.

D
Distant Consumer

A distant consumer is defined as one of the following:

(1)  Very small consumer and small consumer, where the distance between himself and the distribution network exceeds 300 meters;

(2)  Medium consumer, where the distance between himself and the distribution network exceeds 3,000 meters;

(3)  Large consumer, where the distance between himself and the distribution network exceeds 6,000 meters;

Distribution System

Supplied by the transmission system, its role is to supply natural gas at low pressure (not exceeding 16 bars), mainly to industrial areas and small consumers.

G
Greenhouse Effect

The intensity of the greenhouse effect has risen during past years due to a rise of greenhouses gases concentration in the atmosphere as a result of human activities. The effect occurs when carbon dioxide and other gases in the atmosphere lock the heat emitted from the earth and prevent it from continuing into outer space. Combustion of fossil fuels causes, among other things, the release of harmful gas emissions into the atmosphere, hence the importance of using the cleanest fuel available – i.e., natural gas. 

H
High Density Polyethylene (HDPE)

A substance used for construction of pipelines for natural gas distribution. Its density ranges between 0.941 gram cubic centimeters to 0.965 gram cubic centimeters. The lack of string chains branching in the substance is characterized by strong inner-chains that result in high hardness.

L
Large Consumer

A consumer who receives services for annual consumption of natural gas exceeding 1,000,000 cubic meters.

Liquefied Petroleum Gas (LPG)

 Liquefied Petroleum Gas (LPG) is the common gas used for cooking and contains a mixture of hydrocarbon gases , mainly propane and butane. LPG is colorless and odorless (LPG in home or commercial use may contain an artificial odorant for detection purposes). The storage of LPG can be conducted in different accumulation conditions: fluid or gas, but it is mainly customary to transfer and store LPG in a fluid accumulation condition.

M
Medium Consumer

A consumer who receives services for annual consumption of natural gas exceeding 100,000 cubic meters and does not exceed 1,000,000 cubic meters.

Methane

An organic compound found in nature as combustible gas, both odorless and colorless. It is referred as alkane, the simplest organic component. Its chemical formula is CH4. One of the principal component’s of natural gas is methane.

N
Natural Gas

 Natural gas is a combustible mixture of hydrocarbon gases, formed primarily of pure methane (CH4). It is formed in the same way as oil and is also found in reservoirs underneath the earth’s crust. Natural gas is mainly transferred through pipelines. For full details regarding its qualities, advantages and many uses, please see relevant category on this website.

P
Pressure Regulation Metering System (PRMS)

This system reduces, adjusts and measures gas pressures. The transportation of natural gas is carried out through the national transmission line in high pressures (over 16 bars). In order to connect to end consumers, a system that will reduce and adjust the pressure is required. This system is located between the national transmission line and the distribution lines that distribute the gas to the end consumers.

S
Small Consumer

A consumer who receives services for annual consumption of natural gas exceeding 10,000 cubic meters and does not exceed 100,000 cubic meters.

T
Transmission System

Acts as the main artery of the gas expansion in the country. This is the head system and its role is to transport the gas at high pressure (over 16 bars) from the supply points to high pressure gas consumers (e.g., power stations) and to the supply points of the distribution system.

V
Very Small Consumer

A consumer who receives services for annual consumption of natural gas that does not exceed 10,000 cubic meters.