Answer SSEP Question 25
Q25. As a second engineer how will you plan to reduce the Energy Efficiency Operating Index of your ship?
Answer:
(a) The Ship energy efficiency Management Plan (SEEMP) provides a
practical tactic for ship operators to manage operations overtime using
the Energy Efficiency Operational Indicator (EEOI) as a monitoring tool.
(b) The Ship Energy efficiency management plan to improve the efficiency of the ship can be implemented in various ways such as by optimizing the speed of the vessel. Making a course change to tackle rough weather, hull cleaning in dry dock, installing heat recovery methods etc.
(c) The SEEMP is a plan which is ship specific and has to be implemented according to the ship type, cargoes carried, ship routes, and other relevant factors.
(d) The basics of creating the SEEMP for a particular ship is to estimate and determine the current energy consumption, fuel consumption, heat recovery of the vessel and implement various measure to reduce/the same.
Improving efficiency
(a) Running main engine at optimum load and at MCR or close to MCR as the ME are tuned to best fuel efficiency at MCR.
(b) Auxiliary engines are to be run at best possible combination so as to avoid running engine at low loads for prolonged period.
(c) Boiler usage, incinerator fuel consumption can be reduced if proper operating procedures are followed.
(d) Wastage of:diesel oil, especially for cleaning of parts can be reduced to a maximum level so as to avoid wastage of fuel.
(e) Purifiers leakage, fuel pipe line leaks etc can be avoided.
Efficient running of Auxiliaries
(a) Auxiliary machines such as pumps, compressors, refrigeration and AC units can be run at best possible efficiency to avoid surplus functioning.
(b) Pumps which are not required can be stopped or number of pumps required for the operation can be stopped or run efficiently to avoid power consumption.
(c) Air compressor performances can be improved via proper maintenance and by following good working practices.
(d) Air leakages are to be identified and arrested which will save energy.
(e) Steam leakages to be traced and stopped.
(f) Boiler hotwell temperature to be maintained $\displaystyle \mathrm{90^oC}$ or more.
(g) Insulation of cold rooms and accommodation spaces to 6e maintained at good condition always which will reduce heat loss to avoid frequent cut-in of refrigeration and AC system.
Waste Heat recovery
Waster heat recovery methods are adopted in TC, Economizer, fresh water generator, lube oil heat recovery, AC re-heating by JCW in passenger ships etc.
(h) Ensure TC is in clean condition by grit cleaning and wet cleaning methods to avoid fouling of turbine blades.
(i) Ensure exhaust gas boiler tubes are in dean condition by periodical soot blowing and water washing.
(j) Utilize the maximum heat from FWG by ensuring maximum vacuum, arresting vacuum loss, cleaning the heat exchanging tubes etc., (l) Lube oil purifier supply oil is pre-heated by the return oil which will recover the heat on the lube oil while the engine Is running, otherwise this heat will be rejected at the cooler as wasted heat.
(m) In passenger ships AC re-heating system makes use of the JCW even when the ship is at port from the exhaust of DG.
(n) Electrical energy conservation.
(o) Switch-off lights and other electrical equipment in the accommodation area and in engine room when it is not required.
(p) Usage of VFD's for engine room fans, blowers and Pumps to be encouraged to run them at lower loads as and when not required.
(q) Over running of deck machineries like two winch motors to be avoided unless the situation warrants and the deck machineries to be started only when required instead of running in advance.
(i) Conserve energy in galley by efficiently utilizing the electrical power and also turning off the equipment when not in use like in the nights etc.
(b) The Ship Energy efficiency management plan to improve the efficiency of the ship can be implemented in various ways such as by optimizing the speed of the vessel. Making a course change to tackle rough weather, hull cleaning in dry dock, installing heat recovery methods etc.
(c) The SEEMP is a plan which is ship specific and has to be implemented according to the ship type, cargoes carried, ship routes, and other relevant factors.
(d) The basics of creating the SEEMP for a particular ship is to estimate and determine the current energy consumption, fuel consumption, heat recovery of the vessel and implement various measure to reduce/the same.
Improving efficiency
(a) Running main engine at optimum load and at MCR or close to MCR as the ME are tuned to best fuel efficiency at MCR.
(b) Auxiliary engines are to be run at best possible combination so as to avoid running engine at low loads for prolonged period.
(c) Boiler usage, incinerator fuel consumption can be reduced if proper operating procedures are followed.
(d) Wastage of:diesel oil, especially for cleaning of parts can be reduced to a maximum level so as to avoid wastage of fuel.
(e) Purifiers leakage, fuel pipe line leaks etc can be avoided.
Efficient running of Auxiliaries
(a) Auxiliary machines such as pumps, compressors, refrigeration and AC units can be run at best possible efficiency to avoid surplus functioning.
(b) Pumps which are not required can be stopped or number of pumps required for the operation can be stopped or run efficiently to avoid power consumption.
(c) Air compressor performances can be improved via proper maintenance and by following good working practices.
(d) Air leakages are to be identified and arrested which will save energy.
(e) Steam leakages to be traced and stopped.
(f) Boiler hotwell temperature to be maintained $\displaystyle \mathrm{90^oC}$ or more.
(g) Insulation of cold rooms and accommodation spaces to 6e maintained at good condition always which will reduce heat loss to avoid frequent cut-in of refrigeration and AC system.
Waste Heat recovery
Waster heat recovery methods are adopted in TC, Economizer, fresh water generator, lube oil heat recovery, AC re-heating by JCW in passenger ships etc.
(h) Ensure TC is in clean condition by grit cleaning and wet cleaning methods to avoid fouling of turbine blades.
(i) Ensure exhaust gas boiler tubes are in dean condition by periodical soot blowing and water washing.
(j) Utilize the maximum heat from FWG by ensuring maximum vacuum, arresting vacuum loss, cleaning the heat exchanging tubes etc., (l) Lube oil purifier supply oil is pre-heated by the return oil which will recover the heat on the lube oil while the engine Is running, otherwise this heat will be rejected at the cooler as wasted heat.
(m) In passenger ships AC re-heating system makes use of the JCW even when the ship is at port from the exhaust of DG.
(n) Electrical energy conservation.
(o) Switch-off lights and other electrical equipment in the accommodation area and in engine room when it is not required.
(p) Usage of VFD's for engine room fans, blowers and Pumps to be encouraged to run them at lower loads as and when not required.
(q) Over running of deck machineries like two winch motors to be avoided unless the situation warrants and the deck machineries to be started only when required instead of running in advance.
(i) Conserve energy in galley by efficiently utilizing the electrical power and also turning off the equipment when not in use like in the nights etc.
Comments
Post a Comment