Increasing gas compressor units energy efficiency
Annotation
The article deals with effective use of low-temperature exhaust heat. The method is that direct thermodynamic cycle with water and alternative working fluids can be used. With direct thermodynamic cycle expansion engine should be used to obtain some additional energy in electrical generator. At electrical power plants turbines with blades are usually used as an expansion device for water vapor. When expansion engine is brought into circuit design with compressor station the following parameters are used for calculations: t0, working fluid boiling temperature in direct cycle, = 100 оС, working fluid condensation temperature tк = 50 оС. In calculations for gas-turbine unit: boiling temperature t0 = 117.8 оС, condensation temperature tк = 50 оС. Water and the following halocarbons are considered as working fluids: R600, R11, R21, R113, R114, R123. The choice is made according to the following parameters: upstream pressure is not more than 2 МPа due to general requirements to refrigeration equipment, downstream pressure is no less than 0.1 МPа due to no outdoor air inflow, working fluid expansion ratio limit is not more than π = 15.
Keywords
Постоянный URL
Articles in current issue
- Prevention of Diabetes through use of Hypoglycemic Chinese Herbs
- Batch-wise process of cherry juice freeze concentration
- Evaluation of meat grinder performance depending on their design and physical and mechanical properties of raw-material
- High temperature sterilization of pear compote with two-stage heating of fruits in SHF electromagnetic field
- Cod liver and its fat in multicomponent food technology
- On the problem of a mathematical model for herring salting process
- Respiration substrates oxidation kinetics of grape for table use at refrigerated storage with track membranes
- Analysis of energy consumption reduction methods in refrigeration systems during year-round exploitation
- Mathematical model of heat balance calculation for the radiator of refrigeration system with effective radiation into space
- Cryoadsorption vacuum pump in pulse mode: operation peculiarities
- Study of short low temperature range heat pipes. Part 2. Theoretical model*
- Systematization of airindependent low-temperature combustion installations
- The influence of cryosphere and cloud cover area of the Earth on its energy balance and global climate
- Curvilinear diameter rule and scaled equation with variables of pressure and temperature
- The comparison of the intensity of heat transfer and pressure drop during boiling of the refrigerants R404A and R22 in horizontal pipes
- Non-uniformity of geothermal well heat pump temperature field