The first round of repair and clean up works on the Kelana Jaya Line were completed yesterday night (
s an analogue dial, to the heart pulse-effect turn signal lights indicator (effect repeated outside on
service life with no change to the hybrid components.Having said that, reliability is very dependent on
Work has already begun to remove the gantry crane structure and repairs at the construction site on Saturday
Interestingly, the Konas 1.6 Turbo engine is able to operate in two engine cycles – the conventional Otto
A pothole on Jalan Tengah heading towards Mid Valley has caused the unfortunate death of a motorcyclist
Cycle & Carriage, together with Mercedes-Benz Malaysia, officially unveiled the newly upgraded Johor
Now the Works Ministry and the Public Works Department has spoken up about the incident.Also read: 3
Cycle & Carriage Bintang, one of the authorized Mercedes-Benz dealers in Malaysia, has announced
the modern day MINI they also invited Cooper to set up a special collaboration as well.John Cooper Works
preparations for its production underway, BMW has announced that the 2020 BMW iX3 is set to be unveiled on
The otto cycle is most commonly used.
Berhad (PLUS) has announced that they will be closing sections of the Putrajaya-Gamuda Cove Interchange on
Otto cycle is the most conventional engine cycle.
pushed pass the previous boundary of 253 PS with the introduction of their new 2019 MINI John Cooper Works
Although ABS has been around for years, many still do not understand how ABS actually works.
When Cycle & Carriage opened its Mercedes-Benz Autohaus facility in Mutiara Damansara back in 2006
attention away from the road momentarily, or we mispressed the accelerator pedal, or maybe we were too busy on
The passive works via induced current while the active only works with a supplied current.A Passive wheel
More power is always good and MINI seems to agree, as the 2021 MINI John Cooper Works (JCW) Countryman
When MINI Malaysia launched the facelifted 2019 MINI Clubman, they also launched the John Cooper Works
Cycle & Carriage Bintang Berhad (C&C) and Mercedes-Benz Malaysia’s (MBM) has opened its
We have to focus even more on emissions than we have so far.
Early this morning, photos of a concrete block on the middle lane of MRR2 after Hillview heading towards
Now Prasarana has released an official statement along with an announcement that repair works might take
Move aside for this MINI John Cooper Works Countryman because under the bonnet lies a 306 PS beast with
Not many are aware but Geely has been quietly working on a flying car, one that actually fits the description
Cycle & Carriage Bintang Berhad (Cycle & Carriage) has achieved a remarkable feat, scoring a
The MINI 3-door Hatch has just received a new visual update from John Cooper Works.
As you might have already know, the latest fifth generation Honda City has just gone on sale in Thailand
Otto Cycle... it is the thermodynamic cycle on which petrol engine works. Ideal otto cycle has to isentropic and 2 constant volume process.its efficiency mainly depends on compression ratio.
How does VW's Budack engine cycle work?: Volkswagen isn't reinventing the way your internal combustion engine works. The automaker has, however, created a new twist on the Otto cycle that's a revised version of the Atkinson cycle.… #Cars #Autonews #NY
Questions unanswered ???: 1.Gas engine works on otto cycle ...true or false ?? 2.Injection of fuel by external.. http://bit.ly/NBNER
#MechanicalAn open cycle gas turbine works on A. Otto cycleB. Carnot cycleC. Joule's cycle D. Stirling cycle
Four Stroke Petrol Engine: The petrol engine works on the principle of theoretical Otto cycle,also known as co... http://goo.gl/8wIVM
(tech level-1) A gas turbine works on(a) Rankie cycle(b) Carnot cycle(c) Otto cycle(d) Brayton cycle
#HowThingsWork: Parts like valves, cam shafts, and timing belts aren’t needed with rotary engines! Similar to piston engines, rotary engines are based on the Otto cycle. Click here to see how it all works
Good Morning All! Time for today's Power Quiz!Gas turbine works on this cycleA. Otto cycleB. Rankine cycleC.... http://fb.me/35Vxf86vq
Otto cycle is open cycle so no question of helium. Could be used in closed cycle gas turbine brayton cycle with arrangement of no leaks.
They also work on a two-stroke cycle as seen in any chainsaw. They also work on the Atkinson cycle, as in the Toyota Prius. There are also rotary engines without pistons as seen in the Mazda RX-7 and RX-8.
Diesel engine works on diesel cycle whereas petrol engine works on Otto cycle. The main difference between both the cycles is the process of heat addition, which is constant volume in Otto cycle and constant pressure in diesel cycle. In Otto cycle the air fuel ratio is already sucked in the suction process and it is compressed in compression stroke and hence with the help of spark plug the same compressed air fuel is ignited which is why it is called constant volume heat addition ,which is not possible in case of diesel cycle where fuel is added by the fuel injector to the already compressed air and then it is combusted. Here question of constant volume heat addition doesn't rise as during ignition,fuel is being continuosly added to the cylinder where pressure is kept constant. Diesel can't ignite with the help of spark plug , compressed air is necessary for its combustion so we can't use Otto cycle.
T1 = 50+273 = 323K , T2=373+273= 646K , thus using relationship (V1/V2) = (T2/T1) ^(1/(gamma-1)) = 5.66 , Thus compression ratio= 5.66
Thermodynamic efficiency of Otto cycle is given by expression 1–1/r^0.3, where Cp/ Cv is taken as 1.3 for mixture of combustion products of fuel air mixture and r is compression ratio. By increasing compression ratio from 5 to 7, thermodynamic efficiency would increase from 38.3% to 44.2%. To avoid auto ignition, the compression ratio is normally limited to 10.
This I believe is not done for a variety of reasons : 1) Safety : A car typically has a gas tank in the boot area which is protected by the metal of the car. Accidents which are very likely to happen everyday like small dashes wont affect the cylinder directly. In a bike the cylinder, if provided, would be very open and with the slightest slip or accident it might get damaged. 2) Weight : Because of the higher pressure under which CNG is filled (around 200 bar) and the safety standards the normal weight of a (10kg CNG) cylinder is 50 kg. Adding 50 kg cylinder to a normal 1000kg car is 5% weight addition but adding even a smaller 25 kg cylinder to a normal 100kg bike is 25% weight addition. This would affect handling, braking, etc in bikes. 5% weight addition in cars wont matter much. 3) Space: The dimensions of a 50kg CNG cylinder are length 835 mm and a diameter 316 mm which is too big to be fitted on a bike. Even if the smallest possible CNG cylinder is fitted the space required will be quite large. In cars, this kind of space is readily available in the boot. On bikes there is no such free space. 4) Engine power : Bikes, due to their compact nature, have engines that produce 8-10 bhp of power. Cars have engines that produce atleast 90 bhp. Now, addition of 5% kerb weight in a car wont matter much to a 90 bhp engine but addition of 25% kerb weight in a bike to a 8 bhp engine would under power the bike significantly, so it would be counterproductive.
Mean effective pressure is the ratio of work done (W) during the working stroke(s) of a cycle to the stroke volume or swept volume (Vs) of the cylinder. It is denoted by ‘pm‘ and its unit is N/m2. In order to derive an expression for mean effective pressure of Otto cycle, we have to find out an expression for work done and stroke volume of Otto cycle. From my ,previous article,, p-V and T-s diagrams of Otto cycle are as follows: p-V Diagram T-s Diagram From my ,previous article,, Compression ratio, Pressure ratio, In process 1-2 (isentropic compression), In process 3-4 (isentropic expansion), Also from the ,p-V diagram, above, V1 = V4 and V2 = V3 Let Vc = V2 = V3 = 1 Work done during Otto cycle, W = Work done during isentropic expansion (process 3-4) – Work done during isentropic compression (process 1-2) This is the expression for work done (W) in terms of r, k, γ and p1. Now, let us derive an expression for stroke volume Vs in terms of r. We know that in Otto cycle, Vs = V1 – V2 (See ,p-V diagram, above) Now, Mean effective pressure, The above expression can be written as which is the required expression for mean effective pressure of otto cycle