NOPR Collection:http://nopr.niscpr.res.in/handle/123456789/17882026-10-10T20:51:50Z2026-10-10T20:51:50ZPerformance enhancement of natural circulating storage typeBhatt, M Siddharthahttp://nopr.niscpr.res.in/handle/123456789/18002008-08-19T04:30:30Z2008-07-01T00:00:00ZTitle: Performance enhancement of natural circulating storage type
Authors: Bhatt, M Siddhartha
Abstract: Performance of solar water heater was simulated for one extraction per day (at 18:59 h), two extractions per day
(12:00 & 18:59 h) and hourly extractions (06:00 - 18:59 h). Annual thermal energy output (for 2 m² collector system) was
1181.65, 1354.69 and 1585.89 kWh/m²/year at annual collector-tank system efficiency of 59.61, 68.34 and 80.0 % respectively.
Maximum temperatures reached at 18:59 h was 92.3°C for one extraction mode and 67.1°C for two extraction mode. Performance
can be enhanced (20-30%) through multiple extraction of water over the day by controllable dual tank system and a performance
optimizer for electrical back up. Also, average solar radiation and weather data of Bangalore for 1977-2005 is presented.
Page(s): 549-5552008-07-01T00:00:00ZPerformance of copper coated spark ignition engine with methanol-blended gasoline with catalytic converterKrishna, M V S MuraliKishor, Khttp://nopr.niscpr.res.in/handle/123456789/17992008-08-20T04:30:15Z2008-07-01T00:00:00ZTitle: Performance of copper coated spark ignition engine with methanol-blended gasoline with catalytic converter
Authors: Krishna, M V S Murali; Kishor, K
Abstract: This paper reports performance evaluation of four-stroke, single cylinder spark ignition (SI) engine with methanol
blended gasoline (20% methanol, 80% gasoline, by vol) having copper coated engine [copper (thickness, 300 ¼) coated on
piston crown and inner side of cylinder head] provided with catalytic converter with sponge iron as catalyst and compared
with conventional SI engine with gasoline operation. Brake thermal efficiency increased with methanol blended gasoline
with both engine types. Copper-coated engine showed improved performance than conventional engine with both test
fuels. Catalytic converter with air injection significantly reduced pollutants with both test fuels on both engine types.
Page(s): 543-5482008-07-01T00:00:00ZBiodegradation of polycyclic aromatic hydrocarbons by white rot fungi Phanerochaete chrysosporium in sterile and unsterile soilBishnoi, KiranKumar, RajenderBishnoi, Narsi Rhttp://nopr.niscpr.res.in/handle/123456789/17982008-08-19T04:30:18Z2008-07-01T00:00:00ZTitle: Biodegradation of polycyclic aromatic hydrocarbons by white rot fungi Phanerochaete chrysosporium in sterile and unsterile soil
Authors: Bishnoi, Kiran; Kumar, Rajender; Bishnoi, Narsi R
Abstract: Ligninolytic white rot fungus, Phanerochaete chrysosporium, isolated from soil sample of petroleum refinery, was
used for degradation of five polycyclic aromatic hydrocarbons (PAHs: acenaphthene, anthracene, phenanthrene, fluoranthene
and pyrene), simultaneously and individually in sterile and unsterile soil. For maximum biodegradation, after 42 days of
incubation, optimum conditions were pH 7.0, 30°C and 5μg/g PAHs concentration. In sterile soil, degradation in 42 days of
incubation of five PAHs was as follows: phenanthrene, 98.96; anthracene, 92.6; pyrene, 92.2; acenaphthene, 83.8; and
fluoranthene, 79.8%. In unsterile soil, PAHs degradation was low (38.94-62.89%).
Page(s): 538-5422008-07-01T00:00:00ZDirect conversion of raw starch to lactic acid by Lactobacillus plantarum MTCC 1407 in semi- solid fermentation using sweet potato (Ipomoea batatas L.) flourPanda, S HRay, R Chttp://nopr.niscpr.res.in/handle/123456789/17972008-08-20T04:30:11Z2008-07-01T00:00:00ZTitle: Direct conversion of raw starch to lactic acid by Lactobacillus plantarum MTCC 1407 in semi- solid fermentation using sweet potato (Ipomoea batatas L.) flour
Authors: Panda, S H; Ray, R C
Abstract: Lactobacillus plantarum MTCC 1407 was used for direct fermentation of raw starch in sweet potato (Ipomoea
batatas L.) flour (SPF) to lactic acid (LA) under semi- solid fermentation using Mann Rogassa Sharpe medium containing
(3%) SPF in lieu of glucose (2%) as carbon source. Response Surface Methodology (RSM) was used to evaluate effect of
incubation period, temperature and pH on LA production, using a full factorial Central Composite Design (CCD). At optimum
parameters (incubation period, 120 h; temperature, 35°C and pH, 6.5), maximum starch conversion by Lb. plantarum MTCC
1407 to LA was 56.4%. The organism produced (L+) LA (23.86 g) from starch (55 g) present in SPF (100 g); LA production
yield (mass LA produced mass starch present in SPF⁻¹ x 100) was 43.4%.
Page(s): 531-5372008-07-01T00:00:00Z