the students. Eight of the ten interviewees found the feedback of their tandem partners helpful for
page
EPDE2023/1211
their projects: ‘It gave me ideas like ‘yes, I'll try to put plexiglass [...] week over the first four weeks and three other lectures that the students had to carry out
on their own via digital material). The practical part took place in a laboratory and was accompanied by
[...] questionnaires (a mix of open and
multiple-choice questions), in which they were asked about their perception of e-portfolio work.
Evaluation topics were the general acceptance of e-portfolios
singenieurwesen (B. Sc.)
Informatik (B. Sc.)
Students exam grade in relation to their major.
Students in their first semester can take the exam as
a free shot with no negative consequences if
tasks were created with a step-by-step solution using the STACK
question type. The students checked their answers and got feedback at the end of
each task.
To demonstrate these exercises, those were offered
differentiated into current-controlled and
heat-controlled systems. Current-controlled systems adapt their
energy supply to the electrical energy demand of the consumer. In
contrast to current-controlled systems [...] to convert electrical energy into thermal energy different
CHP engine technologies were used. In their study different CHP
engines, with different ratios between thermal and electrical power
(i.e. different [...] in remote
regions.
In this work Liquid Organic Hydrogen Carriers (LOHC) have been
examined for their suitability for integration into a CHP systems.
The LOHC technology is based on the reversible hy
essential and often used apparatuses in power plant engineering
and are appreciated worldwide for their efficiency and durability. It comes to no surprise that the technology of
transferring heat from [...] specific amount
of heat can be determined and from that area – knowing the number of tubes n and their outside diameter – the length
finally can be calculated.
l=
A
ndaπ
(15)
[...] structures.
The main reason is, that all of the tubes in the tube bundle have the same distance from their surrounding tubes. This
leads to a homogenous thermic stress field in the front and back side
essential and often used apparatuses in power plant engineering
and are appreciated worldwide for their efficiency and durability. It comes to no surprise that the technology of
transferring heat from [...] specific amount
of heat can be determined and from that area – knowing the number of tubes n and their outside diameter – the length
finally can be calculated.
l=
A
ndaπ
(15)
[...] structures.
The main reason is, that all of the tubes in the tube bundle have the same distance from their surrounding tubes. This
leads to a homogenous thermic stress field in the front and back side
course with first-year
students allows them to clarify their ideas about the techniques and
methods of solving problems that are necessary in their professional
activities as an engineer.
• To implement [...] mathematical concepts into real practice, helping students
understand the impact of these topics on their future work.
•
• On the other hand, a detailed approach allows the authors to control the
[...] the process of studying the course
material: to prompt students to effective decisions, to fix their attention
on certain points of the material that students usually do not notice or
misunderstand
Ours (2004) Does the Recent Success of Some OECD Countries in Lower-
ing their Unemployment Rates Lie in the Clever Design of their Labour Market Reforms?, Ox-
ford Economic Papers, 56, 621 - 642.
Berthold [...] output y is produced by employing the input factors labour L and
capital K . If firms minimize their production costs at given input prices and for a given level of
output, there exists under weak [...]
institutions with the contemporary error terms, we instrument all labour market institutions by their
lagged and second lagged observations. Table 4 presents the results for RW1 and RW2 each with a
the teacher's workload.
2) Reduces the student's misunderstanding due to the difference between their answer and the one
provided in the test.
3) Suggest to STACK developers to expand the Extra
mathematical STACK problems with automated feedback offer students opportunities to consolidate
their mathematical skills anywhere and anytime. Regular online tests for further integration into mathematics
turbine expanders
and evaluates them concerning their application in small ORC-plants. In the author´s opinion, the
advantages of turbines outweigh their disadvantages. Nevertheless, in the following the [...] Usually, dry runners suffer from higher friction
losses and leakages. Therefore, their efficiency is lower than that of their lubricated counterparts.
2.4 Construction of Small Dynamic Expanders - Turbines [...] expander for a given application and in addition evaluates the different expanders with regard to
their suitability for a so-called “micro-expander-construction-kit” which should help to design and
build
although it works with 50% partial admission.
Another major difference between the two curves is their slope. That of the axial turbine starts
steeper and reaches a clear plateau or maximum respectively
talk about stator blades but in case of micro-
turbines the stator nozzles are relatively long and
their shape is similar to the Laval nozzle. The stator
nozzles geometry of the investigated turbine is also
although it works with 50% partial admission.
Another major difference between the two curves is their slope. That of the axial turbine starts
steeper and reaches a clear plateau or maximum respectively
meets the needs of the present without compromising the ability of future genera-
tions to meet their own needs."23
Daraus folgt, dass Nachhaltigkeit einerseits jenes Handeln ist, das die Bedürfnisse
Ours (2004) Does the Recent Success of Some OECD Countries in Lower-
ing their Unemployment Rates Lie in the Clever Design of their Labour Market Reforms?, Ox-
ford Economic Papers, 56, 621 - 642.
Berthold [...] output y is produced by employing the input factors labour L and
capital K . If firms minimize their production costs at given input prices and for a given level of
output, there exists under weak [...]
institutions with the contemporary error terms, we instrument all labour market institutions by their
lagged and second lagged observations. Table 4 presents the results for RW1 and RW2 each with a
according to the following scheme:
1) Description through a table of permissible values of 𝑋, their
probabilities 𝑃 𝑋 = 𝑘 = 𝑝𝑘 and cumulative probabilities
𝐹(𝑘) = 𝑃(𝑋 ≤ 𝑘).
2) Graphical [...] response tree (PRT).
We will pilot the question with students next year and refine it
based on their feedback.
/* VARIABLES */
p:rand_with_step(0.3,0.9,0.05)
n:rand_with_step(4,7,1)
x_n: [...] thoroughly grasp and reinforce the
curriculum of the statistics subject, while also monitoring
their own knowledge acquisition.
The study is conducted within the framework of a
statistics course
higher
power output than about 500 - 1000 kWel. In smaller applications they are rather rare. Their major types
are radial inflow turbines (90 ° IFR), radial cantilever turbines and axial turbines [...] this work. In order to show the current
state-of-the-art, a review of major technologies and their micro-turbine applications are shown below.
Among the first AM technology was stereolithography [...] requires additional treatment due to high roughness of the
printed parts. In terms of materials and their temperature resistance, materials with a temperature
resistance of over 80 °C, exceptionally above
turbine expanders
and evaluates them concerning their application in small ORC-plants. In the author´s opinion, the
advantages of turbines outweigh their disadvantages. Nevertheless, in the following the [...] Usually, dry runners suffer from higher friction
losses and leakages. Therefore, their efficiency is lower than that of their lubricated counterparts.
2.4 Construction of Small Dynamic Expanders - Turbines [...] expander for a given application and in addition evaluates the different expanders with regard to
their suitability for a so-called “micro-expander-construction-kit” which should help to design and
build
necessary. Manufacturers of such ORC plants must be able to adapt their plant design quickly and cost-
efficiently to the requirements of their potential customers to reach economically feasible investment [...] 76.8 % for PR = 22.4 and
rotational speed n = 27,000 rpm. Most likely, the nozzles work with their design pressure ratio in this
operation point.
Similar to Figure 7 for the axial turbine, [...] rotational speed,
an overall turbine pressure ratio PR exists, for which the nozzles work with their design pressure ratio
PRnozzle,design i.e. with optimum nozzle efficiency. No matter whether the
y/thermal energy) does not reflect their different exergetic values.
Therefore we chose an allocation method, which rates the CHP output products according to their
exergy. Electricity is rated with [...] options a consistent methodology was developed. The
refrigeration technologies are assessed regarding their efficiency, CO2-emissions and primary
energy consumption. For CCHP systems an exergetic allocation [...] many of the fluorinated refrigerants used in compression chillers
contribute to global warming and their utilization will be progressively restricted in the European
Union [2]. However, there is a wide
e-portfolios each week. Enough time to support the students with their
task on planning and documenting their project as well as to answer their questions and
collect feedback.
In preparation for the [...] entitlement in mind. They provide the students with the necessary competen-
cies to create their own e-portfolios out of their project task. Example portfolios show the
students a selection of possible layout [...] Annual Conference in September 2022
2162
1 INTRODUCTION
The existence of e-portfolios and their use in the academic world are known and tested for
many years [1]. In Germany however, e-portfolios
rather take a picture of their handwritten scripts to
load them into their e-portfolios. Thus, along with concrete instructions, students concurrently have
space to explore their own ideas and strengths [...] al in nature, study diaries or portfolios (or their
digital form, e-portfolios) are suitable for evaluating students’ skills. E-portfolios, with their functional
versatility, are ‘a tool for the [...] in writing their seminar papers. In contrast to exams, where the 60 minutes of the examination
are decisive for the assessment of students’ overall performance, students can work on their papers over
(usually rather later in the project)
manufacture and assemble their prototypes.
Once the students have achieved some progress in their projects, a short pitch is given
by a student at the beginning [...] laboratory. This
additional assignment achieves student reflection on their products, the projects' process,
as well as communicating their lessons learned to others (Balve and Albert, 2015). The
final project [...] attended the course in their sixth semester and had
no experience or knowledge of product design aside from the basic application of 3D-
CAD (from the lecture on engineering design in their second semester)
successful progress in their studies,
taking into account the measures currently required. All students are recommended to take
the offered examinations in order to avoid a delay in their study progress. [...] buildings have been
obliged to wear a mouth-and-nose covering without exception. Students bring their own com-
munity masks. It is only possible to deviate from the obligation to wear masks if a minimum