scholarly journals A modular design approach for PEM electrolyser systems with homogeneous operation conditions and highly efficient heat management

2020 ◽  
Vol 45 (2) ◽  
pp. 1226-1235 ◽  
Author(s):  
F.J. Wirkert ◽  
J. Roth ◽  
S. Jagalski ◽  
P. Neuhaus ◽  
U. Rost ◽  
...  
Keyword(s):  
Modular Design ◽  
Design Approach ◽  
Heat Management ◽  
Highly Efficient ◽  
Operation Conditions

scholarly journals Advantages of a modular design approach for radiological instrumentation

1990 ◽  
Vol 37 (2) ◽  
pp. 873-877
Author(s):  
W.L. Bryan ◽  
S.R. Maddox ◽  
M.N. Ericson ◽  
C.L. Britton ◽  
M.S. Emery ◽  
...  
Keyword(s):  
Modular Design ◽  
Design Approach

The Modular Design Concept of Decentralized Sewage Reuse Equipment and its Application

2014 ◽  
Vol 955-959 ◽  
pp. 3323-3330
Author(s):  
Zhi Wei Xiao ◽  
Jia He ◽  
Nan Qi ◽  
Jia Peng Wen ◽  
Xiu Bo Chen ◽  
...  
Keyword(s):  
Membrane Filtration ◽  
Modular Design ◽  
Biofilm Reactor ◽  
Design Concept ◽  
Operation Condition ◽  
Engineering Project ◽  
Operation Conditions ◽  
Membrane Processing ◽  
Processing Module ◽  
Sewage Reuse

With biofilm reactor and continuous membrane filtration as the core, this paper proposes to establish biochemical module and membrane processing module, which can from the biofilm - membrane filtration process. In the part of biochemical module, diverse processing function can be realized by adjusting the operation conditions of the pumps and fans. Meanwhile, the number and operation condition of biochemical module could be changed flexibly according to the actual processing needs. Thereby, the standardization and generalization of biochemical module can be achieved. And in the part of membrane processing module, the processing capacity can also be expanded through frequency converting control and increasing the number of membrane module. An engineering project of decentralized sewage reuse is built, and the outlet water quality can reach the expected standard, which suggests that the modular design concept has good feasibility.

A Modular Design Approach to Support Sustainable Design

2004 ◽  
Author(s):  
Cari R. Bryant ◽  
Karthik L. Sivaramakrishnan ◽  
Michael Van Wie ◽  
Robert B. Stone ◽  
Daniel A. McAdams
Keyword(s):  
Life Cycle ◽  
Product Design ◽  
Modular Design ◽  
Sustainable Design ◽  
Consumer Products ◽  
Design Approach ◽  
Small Scale ◽  
Conceptual Design Phase ◽  
The Relationship ◽  
Pair Wise Comparison

This paper presents a redesign method supporting sustainable design of products. The method correlates product modularity with various life cycle directions at the conceptual stage of design. In the case of product redesign, the modular design approach allows designers to focus on increasing the sustainability of a product in terms of recyclability, disassembly and reduction of resource usage at the conceptual stage. By stepping back to the conceptual design phase and analyzing the product free from its current embodiment solutions, the scope of redesign and the potential product improvement increases. At this stage of design, the comprehension of the relationship between the various life cycle aspects of the product and the product design is essential. The elimination preference index (EPI) metric, calculated by pair-wise comparison of various factors governing the product design, quantifies the effect of redesign alternatives on product sustainability. The method is applied to the redesign of twelve small-scale consumer products, of which one example is presented here. In all cases, the redesigned products exhibited enhancement in modularity and part count reduction.

Light Weight Pistons for Friction Optimized Spark Ignition Engines

2014 ◽  
Author(s):  
Dieter Gabriel ◽  
Jochen Adelmann ◽  
Thomas Hettich ◽  
Andreas Hammen
Keyword(s):  
Co2 Emissions ◽  
Spark Ignition ◽  
Design Concept ◽  
Design Approach ◽  
Light Weight ◽  
Spark Ignition Engines ◽  
Gasoline Engines ◽  
Highly Efficient ◽  
Low Co2

This article describes the development of MAHLE piston technology with the goal of meeting increasing requirements of advanced, highly efficient gasoline engines. The new EVOLITE® lightweight piston from MAHLE is a continuation of the development of its predecessor, the EVOTEC® 2, and is based on the EVOTEC® design concept. This concept differs from the design approach of previous decades in that the piston geometry has inverted asymmetry on the thrust and antithrust side. A narrow thrust side is combined with a wide, elastic antithrust side for skirt guidance. The light, robust EVOTEC® 2 piston is available with ring carrier or cooling gallery - Figure 1. The EVOLITE® concept represents further refinement of the EVOTEC® design concept by increasing asymmetry further. By geometrically optimizing the box wall connection between the skirt and crown, the lifetime has been increased by up to 8 times in comparison with the EVOTEC® 2, depending on stress location, while the weight has been reduced by up to 5%. Friction, which is critical for low CO2 emissions, is also reduced with this new piston type.

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