OCTOBER 19-20, 2012 - YMCA University of Science & Technology

Proceedings of the National Conference on
Trends and Advances in Mechanical Engineering,
YMCA University of Science & Technology, Faridabad, Haryana, Oct 19-20, 2012
portion of the electricity is used in the pump of the cold storage system and rest of the electricity is given to the
Smart Grid. From the smart grid, the electricity can be used for other ends purposes or by the consumers.
(iii) Waste heat recovery unit: Waste heat recovery unit is nothing but counter flow or shell and tube heat
exchanger, in which during the solar hours, solar energy and engine exhaust are used as hot fluid. While during
the non-solar hours, engine exhaust and auxiliary firing of producer gas can be used as hot fluid in the heat
recovery unit (Arteconi et al. 2009). The hot fluid always flows towards the generator of the cold storage system,
where it imparts the heat and ammonia is separated from strong aqua-solution. Apart from this, the thrice sources
of energy can be used simultaneously but the system will not be economical viable.
(iv) Scheffler’s Collectors: A concentrating primary reflector (or scheffler’s collector) tracks the sun, focusing
sunlight on a fixed receiver. The primary reflector produces a converging beam of sunlight aligned with an axis
of rotation. The axis of rotation is parallel to the axis of the earth, and it passes through the centers of both the
reflectors (Hua et al. 2010). The clock mechanism rotates the primary reflector around its axis of rotation at a
rate of one revolution per day.
3. RESULT AND ANALYSIS
Biomass
100%
(100kW)
Gasification 80%
(80 kW)
Losses 20% (20kW)
Fig.3. Energy flux diagram for gasifier
The above figures show the experimental data. During all the tests, the ammonia- water absorption chiller was
set up and these data are taken at full load operational mode. Fig.3 shows the energy flux diagram for the
gasification of biomass in the gasifier. If the 100kW biomass is fed into gasifier then 80kW of producer gas can
be produced for the end uses. Where 20 kW will be the losses in gasification. Biomass as the power and
producer gas thermal power are defined as follows:
Electric Energy 31.25%
(25kW)
Producer
gas
100%
(80kW)
Exhaust gases 31.25%
(25kW)
Heat losses in Jacket 31.25%
(25kW)
Losses 6.25%
(5kW)
Fig.4. Energy flux diagram for Engine gen-set
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