Answer / chem

Pinch-technology is a method for analyzing and designing
the use of heat energy. It can be best applied to process
industry which uses large amounts of heat energy. Pinch-
technology is based on mass and heat balance of the
concerned process. All the process streams are analyzed.
The so-called hot composite curve consists of all the
streams, which require cooling and the cold composite curve
consists of all the streams, which require heating. With
help of these curves, all the heat transfer of the process
can be analyzed simultaneously. Optimal targets for energy
consumption can be obtained before the design of the heat-
exchanger network. These targets are based on economical
optimization. Pinch-technology can be used also when
designing heat and power cogeneration and for optimal
placing of heat pumps. Computer programs and graphs are
used when designing processes with the pinch-technology.
The composite curves and energy consumption targets can be
easily composed when using software based on pinch-
technology. The topology of the heat-exchanger network in
the early phases of design is convenient to present with
graphical grid presentation

Answer / prabhakaran

to represent a new set of thermodynamically based methods
that guarantee minimum energy levels in design of heat
exchanger networks

Answer / sheela

Pinch Technology is used for energy integration.Most of the
UK consultancy companies offer consultancy on this.
Basically it can be used everywhere and anywhere
when there is a process that uses energy. It is simple but
very efficient. Plenty of companies uses pinch without
knowing that they use pinch at preliminary level But a
detailed pinch design will really save lots of money
interms of energy.
Many people gets confused about PINCH. It doesnt need any
complex calculations. But you have to follow the procedure
and some simple logics thats it. Q=UAdeltaT,. CPdeltaT.
There is no major formulas and difficult equations involved
in it. Pinch Analysis and process integration is the best
book.

Answer / amir

optimum utilization of heat transfer between hot and cold
streams

Answer / prachi

energy intergration via systematic heat exchanger
networking...

Answer / afrin

it is a methodology for minimizing energy consumption of a chemical process in a thermodynamically feasible manner i.e by optimising heat recovery system...............

What's -74C, dew point is better the -70C dew point In draying unit .

1 Answers  

Can you pls tell me how to calculate the amphere rating of cable in case of three phase supply but all load is single phase

0 Answers  

What are some common causes of control valve noise?

0 Answers  

What are the advantages of using a ball mill over other conventional methods of crushing?

0 Answers  

ACCOUNTING AND FINANCIAL ENGINEERING - EXAMPLE 34.36 : Du Pont analysis is used to perform calculation on Return On Equity (ROE) for an engineering organization. Let Net Income = A; Earning Before Tax (EBT) = B; Earning Before Interest, Tax (EBIT) = C; Sales = D; Assets = E; Equity = F. In 5-step Du Pont formula, let Tax Burden = G = A / B; Interest Burden = H = B / C = 1.04; EBIT % = I = C / D = 0.27; Asset Turnover = J = D / E = 0.66; Leverage = K = E / F = 2.66; ROE = L = A / F. If (1 / G) = (4 / 3) : (a) find the value of L; (b) calculate the values of A, B, C, E and F when D = $1500; (c) verify the answer (b) is correct by using the answer (a).

1 Answers  

what is isochronus and droop speed?

0 Answers  

DIFFERENTIAL EQUATIONS - EXAMPLE 20.2 : During the landing process of an airplane, the velocity is constant at v. (a) If the displacement of the plane is x at time t, find the differential equation that relates t, x and v. (b) The plane has 2 parts of wheels - the front and the back, separated by a distance L. The front part of the wheel touches the land first, that allows the straight body of the plane to form an angle T with the horizontal land. If the vertical distance between the back part of the wheel and the horizontal land is y, find the equation of y as a function of L and T. (c) Find the differential equation that relates dy as a function of dt, v and sin T. (d) Find the differential equation that consist of dy as a function of y, L, v and dt. (e) Find the equation of y as a function of v, L, t and C where C is a constant. (f) When t = 0, prove that y = exp C as the initial value of y.

1 Answers  

based on percentage problems

0 Answers   Amara Raja,

What is the pattern of interview questions and which field is of high importance viz., Mass Transfer, Heat Transfer, Petroleum Refining etc ?

2 Answers   Cairn, IOCL, Reliance,

SSR meanig

1 Answers  

HOw to derive reynolds equation?

1 Answers  

Name some common causes of control valve noise?

0 Answers