Annual Report 2011-2012

Annual Research Report 2011-2012
Project Title:
Conceptual Design of a CCHP system for a Selected Gas or
Combined Cycle Plant
Department: Power Plant Operation Studies Project manager: H.Rezazadeh
Employer: NRI
Project Code: POPPN12
Project Staff: H. Maasoumi, M.E. SarbandiFarahani, A. Namazi, M.Soltani, S.
MostafaviTehrani,
Project Summary:
Inefficient evaporative cooling solutions to capacity decrease in summer months and
water scarcity are of prominent problems of the warm and humid regions located on the
coasts of the Persian Gulf. An interesting approach for both mentioned problems is a
combined cooling, heating and power (CCHP) system for the gas turbine plants located
in the region which benefits both power and water issues simultaneously. Locating in an
energy rich region has made the Persian Gulf coasts a popular place to invest on CCHP
plants.
Selecting an optimized capacity for the cooling and heating parts in a CCHP system
calls for taking in to account a variety of factors from local fuel, power and water prices
to capital and O&M costs as well as regional water and electricity demand. In this
regard this research project was introduced to determine the potential benefits of the
plan in our country and Chabahar Power plant was selected as one proper plant to be
undergoing this plan. The optimum chiller capacity was determined using the local
climate records and different scenarios to co generation of water and electricity was
studied considering condensing or back pressure steam turbines as well as different
scenarios for inlet cooling with or without thermal energy storage systems. The
optimum plan was finally selected from the all possible configurations based on techno
economical analysis.
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